Hard ModeObtain all fragments of the Medallion, all orbs, complete all 7 training rooms, and defeat the bosses in Zones 7 and 8.

True EndingAfter getting the 1st ending by defeating the boss of Zone 7, you will be prompted to save and will obtain the final orb. Reload your data and if you haven't already, complete all 7 training rooms and Zone 8 will be unlocked upon entering the world map. Defeat Zone 8's boss and the true ending will commence.